Thank You Thank you for choosing Humminbird®, America's #1 name in fishfinders. Humminbird® has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment. Your Humminbird® is designed for trouble-free use in even the harshest marine environment. We encourage you to read this installation and operations manual completely in order to get full benefit from all the features and applications of your Humminbird®...
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Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. 800 Series™, 900 Series™, 1100 Series™, Humminbird®, and X-Press™ Menu are trademarked by or registered trademarks of Johnson Outdoors Marine Electronics, Inc.
How Radar Works The word “radar” is an acronym for “Radio Detecting And Ranging.” A radio transmitter sends a quick microwave pulse, and then a receiver listens for that signal’s echo when it is bounced back from something in its path. The returning signal is processed by a computer to determine its relative distance, position, and bearing.
Secure the cable with tape. Invert the scanner and make sure the four mounting holes are clear to accept bolts. Clearing the Mounting Holes (AS 12RD2KW) 4 Mounting Holes Clearing the Mounting Holes (AS 21RD4KW) 4 Mounting Holes...
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AS 12RD2KW: Box Contents* Scanner/Antenna (1) Lock Washers (4) Bolts, Hex Metric M8 x 25mm (1 in.) (4) Flat Washers (4) 5A Fuses (2) Adapter Cable (1) NOTE: Do not remove the cover from the unit. There are no connections or adjustments inside the unit that are needed for installation or operation.
Choose the Mounting Location It is important to consider the following information when installing the scanner on the boat. Also, see Adjust for Obstacles for more information. WARNING! Do NOT install the radar in a location that exposes passengers and crew to the radar beam. Do NOT mount the radar where it could radiate on any person.
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Cable Routing: Test the cable route from the scanner to the control head and power location. Avoid routing the interconnecting cable through areas of possible damage, from moving objects, machinery, exposure to chemicals, or high temperature. See Installation: Connect Power for more information. Mounting Surface (AS 12RD2KW) 3/8”-1/2” (9.5 - 13 mm) Flat Surface &...
Ls = distance to be shifted from center line D = diameter of obstacle on center line R = distance from scanner to obstacle Shifting from the Center Line (AS 12RD2KW) Scanner Unit Center Line Obstacle Shifting from the Center Line (AS 21RD4KW)
Obtaining Sufficient Dip Angle Raise the scanner position so that there is a sufficient dip angle available between the line of sight from the scanner to the obstacle and the horizontal line. By raising the dip angle 5°, it is possible to prevent mid- and long-distance shadow zones.
Installation After you have chosen the mounting location, proceed to the installation section that matches your scanner model. AS 12RD2KW: Scanner Installation Confirm that the mounting location meets the requirements described in the section Choose the Mounting Location. Clean and dry the mounting surface.
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Scanner Orientation (AS 12RD2KW) Index Mark Facing Forward Cable Notch Facing Aft Mounting the Scanner Unit (AS 12RD2KW) Index Mark (faces forward) Mounting Surface (partial view) Flat Washer CAUTION! The scanner will be damaged if the bolts protrude more than 1/2 in. (13 mm).
AS 21RD4KW: Scanner Installation Confirm that the mounting location meets the requirements described in the section Choose the Mounting Location. Clean and dry the mounting surface. Align the included template squarely with the center line of the boat (or chosen mounting location), with the arrow pointing forward.
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Scanner Orientation (AS 21RD4KW) Index Mark Facing Forward Cable Notch Facing Aft Mounting the Scanner Unit (AS 21RD4KW) Mounting Surface (partial view) Flat Washer CAUTION! The scanner will be damaged if the bolts protrude more than 1/2 in. (13 mm). Lock Washer Bolt Installation...
NOTE: Do not remove the in-line fuse unless a dedicated and fused terminal is available. If so, install a 5A fuse (AS 12RD2KW) or an 8 Amp fuse (AS 21RD4KW). The green and blue wires must connect to enable radar (open = disabled, closed = enabled).
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Power Connection (AS 12RD2KW) Power Connection (AS 21RD4KW) Function Wire Color Notes Battery (+) Large White DC 12V to DC 20V Battery (-) Large Black 0 Volts (ground) Small Green Normally Closed Lead *Switch, relay, Enable/Disable or terminated Small Blue...
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800/900 Series™ (rear view) Ethernet Port 1100 Series™ (rear view) Ethernet Port Installation...
Start/Stop Radar Transmission Use the instructions in this section to start transmission or start a timed transmission. WARNING! The radar must be configured before it can be used for complete on-the-water operations. Start Transmission and proceed to Radar Configuration. Start Transmission or Start Timed Transmission Power On: Turn on the radar power source (breaker or switch).
Radar Configuration (installation and repair only) It is important to configure the radar with the control head after installation or equipment repair. The settings in this section should only be needed periodically. CAUTION! Installation and radar tuning should only be performed by a qualified radar service technician. NOTE: To review the installation settings while the radar is transmitting, see Start/Stop Radar Transmission and start the radar transmission.
Tune the Radar The radar can be tuned automatically (Auto Tune) or manually (Manual Tune). Tuning is used to optimize the radar system settings. NOTE: For best results, run the tuning while there are targets within range, so it will be easier to review the data and make adjustments.
Set the Main Bang Suppression Set the Main Bang Suppression to create a range around the boat, or the center of the Radar View, where the radar signal will be suppressed. The targets in this range will not be seen. Select Main Bang Suppression from the Installation menu.
Radar Installation Settings Sector Blanking: Press the RIGHT or LEFT Cursor keys to adjust the range. Heading Line 1st Sector Blanking Range 2nd Sector Blanking Range The range is highlighted in gray on the view. Adjust the Heading Line Use the Adjust Heading Line setting to synchronize the on-screen heading with the actual boat heading so that north is displayed correctly on the view.
After the radar is installed and configured by a qualified radar technician, it is ready for on-the-water operation. See Start/Stop Radar Transmission to start using your Humminbird® radar. We encourage you to read this manual to understand the features of your Humminbird® radar and its available menu settings. Menus The Radar Main Menu and the Radar X-Press™...
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Open the Radar X-Press™ Menu Press the VIEW key until the Radar View is displayed on the screen. Press the MENU key once. Radar X-Press™ Menu Operations...
Humminbird® control head. When radar is connected, the Radar View and Chart/Radar Combo View will be added to the view rotation. The available views will depend on your Humminbird® model. Most of the menu settings in the following sections are enabled when a radar view is displayed on the screen.
Chart/Radar Combo View (GPS Required) The Chart/Radar Combo View shows chart information and radar information in a combination split screen, where the Chart View is displayed on the left, and the Radar View is displayed on the right. Chart/Radar Combo View Chart View Green Arrow Radar View...
Radar Display Settings Adjust Interference Rejection Use the Interference Rejection setting to reduce the noise or interference from other transmitting radars in the area. Select Interference Rejection from the Radar Main Menu. Press the RIGHT or LEFT Cursor keys to select the filter level. (Off, Low, Medium, or High; Default = Off) Change the Radar Display Palette Select Radar Colors from the Radar Main Menu.
Adjust Radar Settings The settings in this section can be accessed from the Radar X-Press™ Menu. Use the settings in this section to filter the returns on the display or increase the amount of returns on the display. Adjust STC Settings Use the STC menu option to control the clutter that may appear on the view during rough sea conditions.
EBL/VRM Use EBL (Electronic Bearing Range) and VRM (Variable Range Ring) to measure the distance and bearing between any two targets on the Radar View. The EBL and VRM can be set as a pair or individually. The marker is tied to the center of the boat. As the boat’s position and heading moves, the EBL/VRM also moves.
Create an EBL/VRM with the X-Press™ Menu Setting the EBL/VRM with the X-Press™ Menu allows you to set the EBL/VRM individually or as a pair. Press the MENU key. Select Create EBL/VRM1 or Create EBL/VRM2 (for the second set). EBL: A dashed line will display on the Radar View. Press the RIGHT or LEFT Cursor keys to adjust the EBL.
Press the RIGHT or LEFT Cursor keys to adjust the EBL. Press the UP or DOWN Cursor keys to adjust the VRM. Save Press the ENTER/INFO key to save your settings. Edit an EBL/VRM Pair An EBL/VRM must be saved to access this menu option. Press the MENU key.
Contact Humminbird® Contact the Humminbird® Customer Resource Center in any of the following ways: By Telephone: (Monday - Friday 8:00 a.m. to 4:30 p.m. Central Standard Time): 1-800-633-1468 By e-mail: (typically we respond to your e-mail within three business days): service@humminbird.com...
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